import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

import org.apache.commons.collections.map.HashedMap;

import com.JDBCUtils.JDBCUtils;

public class getUnusedAwards extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public getUnusedAwards() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();

		String userID = request.getParameter("userID");
		if ((userID == null) || (userID.length() == 0)) {
			out.print("0");
			out.flush();
			out.close();
			return;
		}
		userID.trim();

		String sqlGetUnusedAwards = "select * from user_awards where (user_id=? && has_chosen_good='0')";
		List<Object> getUnusedAwardsParamList = new ArrayList<Object>();
		getUnusedAwardsParamList.add(userID);

		JDBCUtils jdbcUtils = new JDBCUtils();
		List<Map<String, Object>> getUnusedAwardsResultList = null;
		try {
			getUnusedAwardsResultList = jdbcUtils.query(sqlGetUnusedAwards,
					getUnusedAwardsParamList);
		} catch (SQLException e) {
			out.print("-1");
			out.close();
			jdbcUtils.close();
			e.printStackTrace();
		}

		// System.out.println(getUnusedAwardsResultList);
		List<Map<String, Object>> returnList = new ArrayList<Map<String, Object>>();
		for (int i = 0; i < getUnusedAwardsResultList.size(); i++) {
			Map<String, Object> tempMap = getUnusedAwardsResultList.get(i);
			Map<String, Object> returnMap = new HashMap<String, Object>();
			returnMap.put("awardType", tempMap.get("award_type"));
			returnList.add(returnMap);
		}

		JSONArray resultJsonArray = JSONArray.fromObject(returnList);
		JSONObject resultObject = new JSONObject();
		resultObject.put("result", resultJsonArray);

		out.print(resultObject);

		jdbcUtils.close();

		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException
	 *             if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
